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题名: Filtration efficiency validation of glass wool during thermal desorption-gas chromatography-mass spectrometer analysis of fine atmospheric particles
作者: Hao, Liang1, 2;  Wu, Dapeng1;  Ding, Kun1;  Meng, Hu1, 2;  Yan, Xiaohui1;  Guan, Yafeng1
关键词: Filtration efficiency ;  Glass wool ;  Fine atmospheric particles ;  PM2.5 ;  Thermal desorption
刊名: JOURNAL OF CHROMATOGRAPHY A
发表日期: 2015-02-06
DOI: 10.1016/j.chroma.2014.12.069
卷: 1380, 页:171-176
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine ;  Physical Sciences
类目[WOS]: Biochemical Research Methods ;  Chemistry, Analytical
研究领域[WOS]: Biochemistry & Molecular Biology ;  Chemistry
英文摘要: Thermal desorption-gas chromatography-mass spectrometer (TD-GC-MS) technique has been widely used for analysis of semi-violate organic compounds on atmospheric aerosol. To prevent GC column from being damaged by fine solid particles during thermal desorption process, glass wool as filter mat is indispensible. However, the filtration efficiency has never been validated. In this paper, the most penetrating particle size and the minimum packing thickness of glass wool were calculated based on classical filtration theory. According to the calculation results, packing parameters of glass wool were optimized experimentally using silica particles. It is demonstrated that glass wool with a packing thickness of 30 mm, solidity of 0.039 can effectively block these fine solid particles from penetrating at normal thermal desorption conditions (T = 300 degrees C, u = 0.4-4 cm/s). Finally, the filtration efficiency of glass wool was further confirmed with real PM2.5 samples. Under the validated filtration condition, TD-GC-MS was applied for the analysis of non-polar organic compounds on real PM2.5 samples, and very good results were obtained. (C) 2014 Elsevier B.V. All rights reserved.
关键词[WOS]: POLYCYCLIC AROMATIC-HYDROCARBONS ;  AMBIENT PARTICULATE MATTER ;  AEROSOL FILTRATION ;  FIBROUS FILTERS ;  ORGANIC-COMPOUNDS ;  AIR-POLLUTION ;  SAMPLES ;  PM2.5 ;  GC/MS ;  INDIA
语种: 英语
WOS记录号: WOS:000348893100021
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145945
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Dalian Inst Chem Phys, Beijing 100039, Peoples R China

Recommended Citation:
Hao, Liang,Wu, Dapeng,Ding, Kun,et al. Filtration efficiency validation of glass wool during thermal desorption-gas chromatography-mass spectrometer analysis of fine atmospheric particles[J]. JOURNAL OF CHROMATOGRAPHY A,2015,1380:171-176.
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